<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <button onclick="sessionStorage.setItem('data', 1);">设置sessionStorage</button>
    <button onclick="console.log(sessionStorage.getItem('data'));">读取sessionStorage</button>
    <button onclick="sessionStorage.removeItem('data');">删除sessionStorage</button>
</body>

</html>